Here's why:
* English doesn't have any words that change pronunciation solely based on capitalization. We pronounce words based on their spelling and their position in a sentence, not on whether they're capitalized or not.
* Some words *can* be pronounced differently depending on their *part of speech* or *context*, but this isn't about capitalization. For example: "present" (noun) is pronounced differently from "present" (verb).
Let me know if you have other word-related puzzles!